add system notices endpoint

app/org/maproulette/Config.scala

@@ -197,6 +197,9 @@ class Config @Inject() (implicit val configuration: Configuration) {
     this.config.getOptional[Int](Config.KEY_TASK_RESET).getOrElse(Config.DEFAULT_TASK_RESET)
   lazy val signIn: Boolean =
     this.config.getOptional[Boolean](Config.KEY_SIGNIN).getOrElse(Config.DEFAULT_SIGNIN)
+  lazy val systemNoticesUrl: String = this.config
+    .getOptional[String](Config.KEY_SYSTEM_NOTICES_URL)
+    .getOrElse(Config.DEFAULT_SYSTEM_NOTICES_URL)
 
   //caching properties
   lazy val cacheType: String =
@@ -282,6 +285,7 @@ object Config {
   val KEY_TASK_BASE_COMPLETED_TIME_SPENT = s"$GROUP_MAPROULETTE.task.base_completed_time_spent"
   val KEY_TASK_MAX_TASKS_PER_CHALLENGE   = s"$GROUP_MAPROULETTE.task.max_tasks_per_challenge"
   val KEY_REVIEW_NEEDED_DEFAULT          = s"$GROUP_MAPROULETTE.review.default"
+  val KEY_SYSTEM_NOTICES_URL             = s"$GROUP_MAPROULETTE.systemNoticesUrl"
 
   val SUB_GROUP_SCHEDULER = s"$GROUP_MAPROULETTE.scheduler"
 
@@ -400,6 +404,7 @@ object Config {
   val DEFAULT_MAX_TASKS_PER_CHALLENGE                 = 50000
   val DEFAULT_ARCHIVE_STALE_TIME_IN_MONTHS            = 6
   val DEFAULT_TASK_BASE_COMPLETED_TIME_SPENT          = 14000
+  val DEFAULT_SYSTEM_NOTICES_URL                      = ""
 
   // Redis Cache id's for different caches
   val CACHE_ID_TAGS               = "1";

app/org/maproulette/framework/controller/NotificationController.scala

@@ -6,13 +6,17 @@ package org.maproulette.framework.controller
 
 import javax.inject.Inject
 import org.maproulette.exception.StatusMessage
-import org.maproulette.framework.service.{NotificationService}
-import org.maproulette.framework.model.{NotificationSubscriptions}
+import org.maproulette.framework.service.NotificationService
+import org.maproulette.framework.model.NotificationSubscriptions
 import org.maproulette.framework.psql.{Order, OrderField, Paging}
 import org.maproulette.session.SessionManager
 import org.maproulette.utils.Crypto
+import org.maproulette.Config
 import play.api.libs.json._
 import play.api.mvc._
+import play.api.libs.ws.WSClient
+import scala.concurrent.ExecutionContext
+import scala.concurrent.Future
 
 /**
   * @author nrotstan
@@ -22,7 +26,9 @@ class NotificationController @Inject() (
     sessionManager: SessionManager,
     components: ControllerComponents,
     bodyParsers: PlayBodyParsers,
-    crypto: Crypto
+    crypto: Crypto,
+    wsClient: WSClient,
+    config: Config
 ) extends AbstractController(components)
     with DefaultWrites {
 
@@ -107,4 +113,41 @@ class NotificationController @Inject() (
         Ok(Json.toJson(StatusMessage("OK", JsString(s"Subscriptions updated"))))
       }
     }
+
+  implicit val ec: ExecutionContext = scala.concurrent.ExecutionContext.global
+  def getAnnouncements(): Action[AnyContent] = Action.async { implicit request =>
+    val url = config.systemNoticesUrl
+
+    if (!url.isEmpty) {
+      wsClient
+        .url(url)
+        .withHttpHeaders(
+          "Accept" -> "application/json"
+        )
+        .get()
+        .map { response =>
+          if (response.status == 200) {
+            try {
+              val json = response.json
+              Ok(Json.toJson(StatusMessage("OK", json)))
+            } catch {
+              case _: Throwable =>
+                InternalServerError(Json.toJson("An error occurred: Invalid JSON response"))
+            }
+          } else {
+            InternalServerError(Json.toJson(s"An error occurred: ${response.status}"))
+          }
+        }
+        .recover {
+          case e: Exception =>
+            InternalServerError(Json.toJson(s"An error occurred: ${e.getMessage}"))
+        }
+    } else {
+      Future.successful(
+        InternalServerError(
+          Json.toJson("An error occurred: System notices not set up on this server")
+        )
+      )
+    }
+  }
 }

conf/v2_route/notification.api

@@ -131,3 +131,9 @@ GET     /user/:userId/notificationSubscriptions     @org.maproulette.framework.c
 #         $ref: '#/components/schemas/org.maproulette.framework.model.NotificationSubscriptions'
 ###
 PUT     /user/:userId/notificationSubscriptions     @org.maproulette.framework.controller.NotificationController.updateNotificationSubscriptions(userId:Long)
+###
+# tags: [ Notification ]
+# summary: Retrieves System Notices
+# description: Retrieves system notices set up from a third party
+###
+GET     /user/announcements                         @org.maproulette.framework.controller.NotificationController.getAnnouncements()